ns for aggression: angry and instrumental instigation, are defined by Megargee (1985). Angry instigation involves the conscious or unconscious desire to hurt someone, while in instrumental instigation, aggression is used as a means to an end.Abernethy and Cox (1994) conducted an experiment with the officers from the Rochester Police Department. The officers were assigned to the training or control groups. Several measures were tested including angry mood (McNair et al. 1971), angry state which assessed state and trait anger and three additional scales including anger-in, anger-out and anger expression. Also tested were performance variables, Anger Management Training Module, and there was a mental health course.Treatment differences were found for the use of force arrests and angry mood. The experiment revealed that individuals who frequently experience anger and frustration tend to express their anger in aggressive behavior directed towards other people or objects. The officers reported that training from the Anger Management Training Module increased their awareness of anger. If this training module is developed further, it will provide research in anger management, performance, and health in law enforcement personnel (Abernethy and Cox, 1994). Police officers in the field are not the only officers to experience stress. Executives of police agencies are also affected by stress and this was researched by Crank, et al. (1993). Crank, et al. (1993) investigated role-stress among executives of municipal and county police agencies. Role stress is the type of stress that derives from characteristics of occupational roles that promote the onset and maintenance of stress (Hall, 1992). The main concern of research into role stress is investigating the circumstances to perceptions of stress (Newton and Keenan, 1987).Municipal and county police departments are very complex. Municipal chiefs are responsible for law enforcement as wel...